Test case ensuring fuzzing is working

[winux138]

Is there a well known "vulnerability" that can easily be found with the umap2fuzz ?

I have a spare laptop on which I installed an old Fedora with a 4.2 kernel (couldn't go older than that).
I am currently fuzzing the keyboard class, it will take 2 days and I have no certainty that it will find something.

So my question is, is there a well known "vulnerability" so I can (and everyone here setting up this project can too) ensure the fuzzing is correctly working ?